source: UsbWattMeter/trunk/fatfs/ff.h@ 165

Last change on this file since 165 was 164, checked in by coas-nagasima, 6 years ago

TOPPERS/ECNLサンプルアプリ「USB充電器電力計」を追加

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1/*---------------------------------------------------------------------------/
2/ FatFs - FAT file system module include R0.11a (C)ChaN, 2015
3/----------------------------------------------------------------------------/
4/ FatFs module is a free software that opened under license policy of
5/ following conditions.
6/
7/ Copyright (C) 2015, ChaN, all right reserved.
8/
9/ 1. Redistributions of source code must retain the above copyright notice,
10/ this condition and the following disclaimer.
11/
12/ This software is provided by the copyright holder and contributors "AS IS"
13/ and any warranties related to this software are DISCLAIMED.
14/ The copyright owner or contributors be NOT LIABLE for any damages caused
15/ by use of this software.
16/---------------------------------------------------------------------------*/
17
18
19#ifndef _FATFS
20#define _FATFS 64180 /* Revision ID */
21
22#ifdef __cplusplus
23extern "C" {
24#endif
25
26#include <stdarg.h>
27#include "integer.h" /* Basic integer types */
28#include "ffconf.h" /* FatFs configuration options */
29#if _FATFS != _FFCONF
30#error Wrong configuration file (ffconf.h).
31#endif
32
33
34
35/* Definitions of volume management */
36
37#if _MULTI_PARTITION /* Multiple partition configuration */
38typedef struct {
39 BYTE pd; /* Physical drive number */
40 BYTE pt; /* Partition: 0:Auto detect, 1-4:Forced partition) */
41} PARTITION;
42extern PARTITION VolToPart[]; /* Volume - Partition resolution table */
43#define LD2PD(vol) (VolToPart[vol].pd) /* Get physical drive number */
44#define LD2PT(vol) (VolToPart[vol].pt) /* Get partition index */
45
46#else /* Single partition configuration */
47#define LD2PD(vol) (BYTE)(vol) /* Each logical drive is bound to the same physical drive number */
48#define LD2PT(vol) 0 /* Find first valid partition or in SFD */
49
50#endif
51
52
53
54/* Type of path name strings on FatFs API */
55
56#if _LFN_UNICODE /* Unicode string */
57#if !_USE_LFN
58#error _LFN_UNICODE must be 0 at non-LFN cfg.
59#endif
60#ifndef _INC_TCHAR
61typedef WCHAR TCHAR;
62#define _T(x) L ## x
63#define _TEXT(x) L ## x
64#endif
65
66#else /* ANSI/OEM string */
67#ifndef _INC_TCHAR
68typedef char TCHAR;
69#define _T(x) x
70#define _TEXT(x) x
71#endif
72
73#endif
74
75
76
77/* File system object structure (FATFS) */
78
79typedef struct {
80 BYTE fs_type; /* FAT sub-type (0:Not mounted) */
81 BYTE drv; /* Physical drive number */
82 BYTE csize; /* Sectors per cluster (1,2,4...128) */
83 BYTE n_fats; /* Number of FAT copies (1 or 2) */
84 BYTE wflag; /* win[] flag (b0:dirty) */
85 BYTE fsi_flag; /* FSINFO flags (b7:disabled, b0:dirty) */
86 WORD id; /* File system mount ID */
87 WORD n_rootdir; /* Number of root directory entries (FAT12/16) */
88#if _MAX_SS != _MIN_SS
89 WORD ssize; /* Bytes per sector (512, 1024, 2048 or 4096) */
90#endif
91#if _FS_REENTRANT
92 _SYNC_t sobj; /* Identifier of sync object */
93#endif
94#if !_FS_READONLY
95 DWORD last_clust; /* Last allocated cluster */
96 DWORD free_clust; /* Number of free clusters */
97#endif
98#if _FS_RPATH
99 DWORD cdir; /* Current directory start cluster (0:root) */
100#endif
101 DWORD n_fatent; /* Number of FAT entries, = number of clusters + 2 */
102 DWORD fsize; /* Sectors per FAT */
103 DWORD volbase; /* Volume start sector */
104 DWORD fatbase; /* FAT start sector */
105 DWORD dirbase; /* Root directory start sector (FAT32:Cluster#) */
106 DWORD database; /* Data start sector */
107 DWORD winsect; /* Current sector appearing in the win[] */
108 BYTE win[_MAX_SS]; /* Disk access window for Directory, FAT (and file data at tiny cfg) */
109} FATFS;
110
111
112
113/* File object structure (FIL) */
114
115typedef struct {
116 FATFS* fs; /* Pointer to the related file system object (**do not change order**) */
117 WORD id; /* Owner file system mount ID (**do not change order**) */
118 BYTE flag; /* Status flags */
119 BYTE err; /* Abort flag (error code) */
120 DWORD fptr; /* File read/write pointer (Zeroed on file open) */
121 DWORD fsize; /* File size */
122 DWORD sclust; /* File start cluster (0:no cluster chain, always 0 when fsize is 0) */
123 DWORD clust; /* Current cluster of fpter (not valid when fprt is 0) */
124 DWORD dsect; /* Sector number appearing in buf[] (0:invalid) */
125#if !_FS_READONLY
126 DWORD dir_sect; /* Sector number containing the directory entry */
127 BYTE* dir_ptr; /* Pointer to the directory entry in the win[] */
128#endif
129#if _USE_FASTSEEK
130 DWORD* cltbl; /* Pointer to the cluster link map table (Nulled on file open) */
131#endif
132#if _FS_LOCK
133 UINT lockid; /* File lock ID origin from 1 (index of file semaphore table Files[]) */
134#endif
135#if !_FS_TINY
136 BYTE buf[_MAX_SS]; /* File private data read/write window */
137#endif
138} FIL;
139
140
141
142/* Directory object structure (DIR) */
143
144typedef struct {
145 FATFS* fs; /* Pointer to the owner file system object (**do not change order**) */
146 WORD id; /* Owner file system mount ID (**do not change order**) */
147 WORD index; /* Current read/write index number */
148 DWORD sclust; /* Table start cluster (0:Root dir) */
149 DWORD clust; /* Current cluster */
150 DWORD sect; /* Current sector */
151 BYTE* dir; /* Pointer to the current SFN entry in the win[] */
152 BYTE* fn; /* Pointer to the SFN (in/out) {file[8],ext[3],status[1]} */
153#if _FS_LOCK
154 UINT lockid; /* File lock ID (index of file semaphore table Files[]) */
155#endif
156#if _USE_LFN
157 WCHAR* lfn; /* Pointer to the LFN working buffer */
158 WORD lfn_idx; /* Last matched LFN index number (0xFFFF:No LFN) */
159#endif
160#if _USE_FIND
161 const TCHAR* pat; /* Pointer to the name matching pattern */
162#endif
163} DIR;
164
165
166
167/* File information structure (FILINFO) */
168
169typedef struct {
170 DWORD fsize; /* File size */
171 WORD fdate; /* Last modified date */
172 WORD ftime; /* Last modified time */
173 BYTE fattrib; /* Attribute */
174 TCHAR fname[13]; /* Short file name (8.3 format) */
175#if _USE_LFN
176 TCHAR* lfname; /* Pointer to the LFN buffer */
177 UINT lfsize; /* Size of LFN buffer in TCHAR */
178#endif
179} FILINFO;
180
181
182
183/* File function return code (FRESULT) */
184
185typedef enum {
186 FR_OK = 0, /* (0) Succeeded */
187 FR_DISK_ERR, /* (1) A hard error occurred in the low level disk I/O layer */
188 FR_INT_ERR, /* (2) Assertion failed */
189 FR_NOT_READY, /* (3) The physical drive cannot work */
190 FR_NO_FILE, /* (4) Could not find the file */
191 FR_NO_PATH, /* (5) Could not find the path */
192 FR_INVALID_NAME, /* (6) The path name format is invalid */
193 FR_DENIED, /* (7) Access denied due to prohibited access or directory full */
194 FR_EXIST, /* (8) Access denied due to prohibited access */
195 FR_INVALID_OBJECT, /* (9) The file/directory object is invalid */
196 FR_WRITE_PROTECTED, /* (10) The physical drive is write protected */
197 FR_INVALID_DRIVE, /* (11) The logical drive number is invalid */
198 FR_NOT_ENABLED, /* (12) The volume has no work area */
199 FR_NO_FILESYSTEM, /* (13) There is no valid FAT volume */
200 FR_MKFS_ABORTED, /* (14) The f_mkfs() aborted due to any parameter error */
201 FR_TIMEOUT, /* (15) Could not get a grant to access the volume within defined period */
202 FR_LOCKED, /* (16) The operation is rejected according to the file sharing policy */
203 FR_NOT_ENOUGH_CORE, /* (17) LFN working buffer could not be allocated */
204 FR_TOO_MANY_OPEN_FILES, /* (18) Number of open files > _FS_LOCK */
205 FR_INVALID_PARAMETER /* (19) Given parameter is invalid */
206} FRESULT;
207
208
209
210/*--------------------------------------------------------------*/
211/* FatFs module application interface */
212
213FRESULT f_open (FIL* fp, const TCHAR* path, BYTE mode); /* Open or create a file */
214FRESULT f_close (FIL* fp); /* Close an open file object */
215FRESULT f_read (FIL* fp, void* buff, UINT btr, UINT* br); /* Read data from a file */
216FRESULT f_write (FIL* fp, const void* buff, UINT btw, UINT* bw); /* Write data to a file */
217FRESULT f_forward (FIL* fp, UINT(*func)(const BYTE*,UINT), UINT btf, UINT* bf); /* Forward data to the stream */
218FRESULT f_lseek (FIL* fp, DWORD ofs); /* Move file pointer of a file object */
219FRESULT f_truncate (FIL* fp); /* Truncate file */
220FRESULT f_sync (FIL* fp); /* Flush cached data of a writing file */
221FRESULT f_opendir (DIR* dp, const TCHAR* path); /* Open a directory */
222FRESULT f_closedir (DIR* dp); /* Close an open directory */
223FRESULT f_readdir (DIR* dp, FILINFO* fno); /* Read a directory item */
224FRESULT f_findfirst (DIR* dp, FILINFO* fno, const TCHAR* path, const TCHAR* pattern); /* Find first file */
225FRESULT f_findnext (DIR* dp, FILINFO* fno); /* Find next file */
226FRESULT f_mkdir (const TCHAR* path); /* Create a sub directory */
227FRESULT f_unlink (const TCHAR* path); /* Delete an existing file or directory */
228FRESULT f_rename (const TCHAR* path_old, const TCHAR* path_new); /* Rename/Move a file or directory */
229FRESULT f_stat (const TCHAR* path, FILINFO* fno); /* Get file status */
230FRESULT f_chmod (const TCHAR* path, BYTE attr, BYTE mask); /* Change attribute of the file/dir */
231FRESULT f_utime (const TCHAR* path, const FILINFO* fno); /* Change times-tamp of the file/dir */
232FRESULT f_chdir (const TCHAR* path); /* Change current directory */
233FRESULT f_chdrive (const TCHAR* path); /* Change current drive */
234FRESULT f_getcwd (TCHAR* buff, UINT len); /* Get current directory */
235FRESULT f_getfree (const TCHAR* path, DWORD* nclst, FATFS** fatfs); /* Get number of free clusters on the drive */
236FRESULT f_getlabel (const TCHAR* path, TCHAR* label, DWORD* vsn); /* Get volume label */
237FRESULT f_setlabel (const TCHAR* label); /* Set volume label */
238FRESULT f_mount (FATFS* fs, const TCHAR* path, BYTE opt); /* Mount/Unmount a logical drive */
239FRESULT f_mkfs (const TCHAR* path, BYTE sfd, UINT au); /* Create a file system on the volume */
240FRESULT f_fdisk (BYTE pdrv, const DWORD szt[], void* work); /* Divide a physical drive into some partitions */
241int f_putc (TCHAR c, FIL* fp); /* Put a character to the file */
242int f_puts (const TCHAR* str, FIL* cp); /* Put a string to the file */
243int f_vprintf (FIL* fp, const TCHAR* str, va_list arg); /* Put a formatted string to the file */
244int f_printf (FIL* fp, const TCHAR* str, ...); /* Put a formatted string to the file */
245TCHAR* f_gets (TCHAR* buff, int len, FIL* fp); /* Get a string from the file */
246
247#define f_eof(fp) ((int)((fp)->fptr == (fp)->fsize))
248#define f_error(fp) ((fp)->err)
249#define f_tell(fp) ((fp)->fptr)
250#define f_size(fp) ((fp)->fsize)
251#define f_rewind(fp) f_lseek((fp), 0)
252#define f_rewinddir(dp) f_readdir((dp), 0)
253#define f_flush(fp)
254
255#define F_SEEK_SET 1
256#define F_SEEK_CUR 2
257#define F_SEEK_END 3
258static FRESULT f_seek(FIL* fp, DWORD ofs, BYTE mode)
259{
260 switch (mode) {
261 case F_SEEK_SET:
262 f_lseek((fp), ofs);
263 break;
264 case F_SEEK_CUR:
265 f_lseek((fp), (fp)->fptr + ofs);
266 break;
267 case F_SEEK_END:
268 f_lseek((fp), (fp)->fsize - ofs);
269 break;
270 default:
271 return FR_INVALID_PARAMETER;
272 }
273
274 return FR_OK;
275}
276
277#ifndef EOF
278#define EOF (-1)
279#endif
280
281
282
283
284/*--------------------------------------------------------------*/
285/* Additional user defined functions */
286
287/* RTC function */
288#if !_FS_READONLY && !_FS_NORTC
289DWORD get_fattime (void);
290#endif
291
292/* Unicode support functions */
293#if _USE_LFN /* Unicode - OEM code conversion */
294WCHAR ff_convert (WCHAR chr, UINT dir); /* OEM-Unicode bidirectional conversion */
295WCHAR ff_wtoupper (WCHAR chr); /* Unicode upper-case conversion */
296#if _USE_LFN == 3 /* Memory functions */
297void* ff_memalloc (UINT msize); /* Allocate memory block */
298void ff_memfree (void* mblock); /* Free memory block */
299#endif
300#endif
301
302/* Sync functions */
303#if _FS_REENTRANT
304int ff_cre_syncobj (BYTE vol, _SYNC_t* sobj); /* Create a sync object */
305int ff_req_grant (_SYNC_t sobj); /* Lock sync object */
306void ff_rel_grant (_SYNC_t sobj); /* Unlock sync object */
307int ff_del_syncobj (_SYNC_t sobj); /* Delete a sync object */
308#endif
309
310
311
312
313/*--------------------------------------------------------------*/
314/* Flags and offset address */
315
316
317/* File access control and file status flags (FIL.flag) */
318
319#define FA_READ 0x01
320#define FA_OPEN_EXISTING 0x00
321
322#if !_FS_READONLY
323#define FA_WRITE 0x02
324#define FA_CREATE_NEW 0x04
325#define FA_CREATE_ALWAYS 0x08
326#define FA_OPEN_ALWAYS 0x10
327#define FA__WRITTEN 0x20
328#define FA__DIRTY 0x40
329#endif
330
331
332/* FAT sub type (FATFS.fs_type) */
333
334#define FS_FAT12 1
335#define FS_FAT16 2
336#define FS_FAT32 3
337
338
339/* File attribute bits for directory entry */
340
341#define AM_RDO 0x01 /* Read only */
342#define AM_HID 0x02 /* Hidden */
343#define AM_SYS 0x04 /* System */
344#define AM_VOL 0x08 /* Volume label */
345#define AM_LFN 0x0F /* LFN entry */
346#define AM_DIR 0x10 /* Directory */
347#define AM_ARC 0x20 /* Archive */
348#define AM_MASK 0x3F /* Mask of defined bits */
349
350
351/* Fast seek feature */
352#define CREATE_LINKMAP 0xFFFFFFFF
353
354
355
356/*--------------------------------*/
357/* Multi-byte word access macros */
358
359#if _WORD_ACCESS == 1 /* Enable word access to the FAT structure */
360#define LD_WORD(ptr) (WORD)(*(WORD*)(BYTE*)(ptr))
361#define LD_DWORD(ptr) (DWORD)(*(DWORD*)(BYTE*)(ptr))
362#define ST_WORD(ptr,val) *(WORD*)(BYTE*)(ptr)=(WORD)(val)
363#define ST_DWORD(ptr,val) *(DWORD*)(BYTE*)(ptr)=(DWORD)(val)
364#else /* Use byte-by-byte access to the FAT structure */
365#define LD_WORD(ptr) (WORD)(((WORD)*((BYTE*)(ptr)+1)<<8)|(WORD)*(BYTE*)(ptr))
366#define LD_DWORD(ptr) (DWORD)(((DWORD)*((BYTE*)(ptr)+3)<<24)|((DWORD)*((BYTE*)(ptr)+2)<<16)|((WORD)*((BYTE*)(ptr)+1)<<8)|*(BYTE*)(ptr))
367#define ST_WORD(ptr,val) *(BYTE*)(ptr)=(BYTE)(val); *((BYTE*)(ptr)+1)=(BYTE)((WORD)(val)>>8)
368#define ST_DWORD(ptr,val) *(BYTE*)(ptr)=(BYTE)(val); *((BYTE*)(ptr)+1)=(BYTE)((WORD)(val)>>8); *((BYTE*)(ptr)+2)=(BYTE)((DWORD)(val)>>16); *((BYTE*)(ptr)+3)=(BYTE)((DWORD)(val)>>24)
369#endif
370
371#ifdef __cplusplus
372}
373#endif
374
375#endif /* _FATFS */
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